Simplify Langfuse for Scale
Langfuse now delivers faster product performance at scale. See the v4 overview for rollout details, access, and migration steps.
Langfuse is rolling out a simplified architecture built for significantly faster product performance at scale. Charts, filters, APIs are becoming much faster across Langfuse Cloud.
To avoid delays in the new experience and see your data in real time, upgrade to Python SDK v4 and JS/TS SDK v5.
What’s faster now
Faster product performance in the UI
Chart loading time is significantly shorter. You can now confidently load charts over large time ranges. Browsing traces, users, and sessions is also much faster, and filters respond more quickly in large projects.
Faster API workflows
The new Observations API v2 and Metrics API v2 are designed for faster querying and aggregations at scale.
Faster evaluation workflows
Observation-level evaluations execute in seconds as we do not need to query ClickHouse for each evaluation anymore.
Learn more
Check out our technical blog post on the new data model.